<template>
  <div class="shopcar-container">
  
			<div class="goods-list">

        <!-- 商品列表项区域 -->
        <div class="mui-card" v-for="(item, i) in goodslist" :key="item.id">
				<div class="mui-card-content">
				<div class="mui-card-content-inner">
				<mt-switch
          v-model="$store.getters.getGoodsSelected[item.id]"
           @change="selectedChanged(item.id, $store.getters.getGoodsSelected[item.id])"
          ></mt-switch>
          <img :src="item.thumb_path">
          <div class="info">
            <h1>{{ item.title }}</h1>
            <p>
              <span class="price">￥{{ item.sell_price }}</span>
               <numbox :initcount="$store.getters.getGoodsCount[item.id]" :goodsid="item.id"></numbox>
               <a href="#" @click.prevent="remove(item.id, i)">删除</a>
            </p>
          </div>
					</div>
				</div>
      </div>
    </div>
		
    <!-- 结算区域 -->
    <div class="mui-card">
				<div class="mui-card-content">
					<div class="mui-card-content-inner jiesuan">
            <div class="left">
              <p>总计 (不含运费)</p>
              <p>已勾选商品 <span class="red">{{ $store.getters.getGoodsCountAndAmount.count }}</span> 件， 总价 <span class="red">￥{{ $store.getters.getGoodsCountAndAmount.amount }}</span></p>
            </div>
            <mt-button type="danger">去结算</mt-button>
            
					</div>
				</div>
      </div>
  </div>
</template>

<script>
import numbox from "../subcomponents/shopcar_numbox.vue";
export default {
  data() {
    return {
      goodslist: []  // 购物车中所有商品的数据
    }
  },
  created() {
     this.getGoodsList();
  },
  methods: {
    getGoodsList() {
      // 1. 获取到 store 中所有的商品的Id，然后拼接出一个 用逗号分隔的 字符串
      var idArr = [];
      this.$store.state.car.forEach(item => {
        idArr.push(item.id);
        // 如果 购物车中没有商品，则直接返回，不需要请求数据接口，否则会报错
        if(idArr.length <= 0) {
          return;

        }
        // 获取购物车商品列表
        this.$http.get("api/goods/getshopcarlist/" + idArr.join(",")).then(result => {
          if (result.body.status === 0) {
            this.goodslist = result.body.message;
          }
        });
      })
    },
    remove(id, index) {
       // 点击删除，把商品从 store 中根据 传递的 Id 删除，同时，把 当前组件中的 goodslist 中，对应要删除的那个商品，使用 index 来删除
      this.goodslist.splice(index, 1);
      this.$store.commit("removeFormCar", id);
    },
     selectedChanged(id, val) {
      // 每当点击开关，把最新的 快关状态，同步到 store 中
      // console.log(id + " --- " + val); 
      this.$store.commit("updateGoodsSelected", {id, selected: val});
     }
  },
  components: {
    numbox
  },
}
</script>

<style lang="scss" scoped>
  .shopcar-container {
    background-color: #eee;
    overflow: hidden;  //解决外边距塌陷
     .goods-list {
       .mui-card-content-inner {
         display: flex;
         align-items: center;
       }
       img {
         width:60px;
       }
       h1 {
         font-size: 13px;
       }
       .info {
         display: flex;
         flex-direction: column;
         justify-content: space-between;
         .price {
           color: red;
           font-weight: blod;;
         }
       }

     }
     .jiesuan {
       display: flex;
       justify-content: space-between;
      align-items: center;
      .red {
        color: red;
        font-size: blod;
        font-size: 16px;
      }
     }

  }
</style>